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| *based on the TM Forum Open Digital Architecture |
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| Architecture Building Blocks√ Decouple functionalities into separate components √ Use the single source of truth approach to data storage √ Implement DevOps to develop/maintain each component √ Define common service abstractions
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| Open APIs√ Promote a multi-vendor environment where each component has a well-defined API √ Ensure interoperability with open API specifications √ Use same APIs for intra- and inter-domain integration |
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| Orchestration and Automation√ Start incrementally: automate repetitive daily tasks first √ Orchestrate multiple components using processes √ Innovate: Don't improve existing manual processes or compromise - invent new, more efficient workflows |
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| As digital transformations bring new challenges to networking ranging from big data transfer and storage to vast scale Internet-of-Things (IoT) applications, network providers must find ways to automate processes to be able to manage increasing operational workloads. To facilitate such automation, providers need to move to abstracting network resources to ensure agility and technology agnostic network service behaviour. These challenges do not only apply to commercial providers, but also to the NREN communities. For GÉANT, with its more than 40 country members, it is therefore crucial to drive this network evolution forward with a common strategy, in a way that would allow for automation, orchestration and virtualisation (OAV) of network services in a multi-domain and inclusive fashion, bringing all partners on board while accommodating already existing solutions. Read more... |
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| The Network eAcademy team has investigated a list of required features and capabilities necessary to be supported by an OAV architecture solution of an research and education (R&E) network ecosystem. This list is by no means exhaustive or prioritised in any way, and can be used as a supporting cross-reference checklist when deciding about new architectural designs or approaches, technologies or components. Read more... |
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| TM Forum's Open Digital Architecture
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| The search for a blueprint led to the selection of the TM Forum’s OpenDigital Architecture (ODA), adopted by and driving the digital transformation of most communication providers. ODA is a reference framework which provides a common understanding and generality in an environment where each NREN is free to choose its own path towards OAV - including architecture, design and implementation. Read more... |
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| A number of architecture proposals and solutions are discussed in this section in order to provide a general overview of the existing implementation paths and their major focus. The short list of investigated architectural solutions has been compiled by the Network eAcademy in order to cover diverse approaches including the most prominent examples given by standardisation bodies, but also proposals that have played a major role in our community being part of research projects. Read more... |
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| Mapping Use Cases and NREN Architectures to ODA Column |
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| Want to align your architecture with ODA? Or do you have an OAV use case you would like to share and work on with us? Are you looking for a particular component or an open API specification?Read more...
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| The Orchestration, Automation and Virtualisation Journey
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| From a traditional OSS/BSS√ Analyse components and functionalities √ De-couple & de-duplicate √ Expose components via APIs √ Automate manual tasks per component √ Use orchestrators to implement complex processes spanning multiple components |
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| √ Agree on terminology to understand each other √ Define common service abstractions √ Ensure interoperable interfacing via common Open APIs √ Federate with other NRENs or commercial providers |
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| √ Employ on-demand provisioning of multi-domain services using common APIs and data models |
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The Focus Group OAV Architectures is working on identifying a service architecture that allows the creation of new services and workflows that can be shared within the community in a multi-domain fashion with a corresponding orchestration process.
This should result with potential candidate architecture(s) to be used as a blueprint for a common framework upon which the community can develop solutions (or automated agents) that can be orchestrated in a potentially multi-domain environment.
In order to select suitable architecture candidates that could fit the community needs, the OAV FG investigates available architectures that aim to solve all or some of the aspects of OAV. The group then identifies commonalities in terms of module functionalities, APIs and data models and performs a deep dive analysis. This work is followed by a cross comparison with existing proprietary solutions in the community and may enable harmonisation in the multi-domain environment. The work of the FG also involves continuous monitoring of architectures and new solutions as they become available.
Ultimate goal: to provide benefits to the community for the development and implementation on future single and multi-domain digital services.
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Standardisation body, organisations, associations based |
Aspects covered by architecture | Aligned/w
| Proposer | Name | Orchestration | Automation | Virtualisation | Link to general info |
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Image Removed | ETSI ZSM | Architectural Framework for End-to-End Service and Network Automation | next-generation management and ops system | fully automated (zero-touch) | NFV + SDN | https://www.etsi.org/technologies/zero-touch-network-service-management |
Image Removed | ONAP | Platform Architecture Dublin Release (blueprints for key use cases) | synchronously orchestrate physical and virtual network functions | closed-loop automation | VNF / SDN / VM / Cloud | https://www.onap.org/architecture |
Image Removed | MEF LSO | Architecture for Lifecycle Service Automation | orchestrated multi-domain services | APIs to automate the entire service lifecycle | NFV, SDN | https://www.mef.net/lso/lifecycle-service-orchestration |
Image Removed | ETSI | OSM (MANO) | Management and Orchestration (MANO) software stack aligned with ETSI NFV | closed-loop automation, policy driven automation | NFV, layering, abstraction | https://www.etsi.org/technologies/nfv/open-source-mano https://osm.etsi.org |
Image Removed | GNA | GVM / GTS, overlap with ETSI-NFV, uses OGF NSI | orchestration through intelligent software agents | automated agents to manipulate standardized service objects | virtualisation through abstracted service objects | https://www.geant.org/Projects/GEANT_Project_GN4/deliverables/D8.9_GE%CC%81ANT-Testbeds-Service-6.0.pdf
https://www.researchgate.net/publication/332595614_Expanding_GEANT_Testbeds_Service_to_Support_Pan-European_5G_Network_Slices_for_Research_in_the_EuWireless_Project
https://www.geant.org/Services/Connectivity_and_network/GTS/Pages/Home.aspx
Image Removed | ONF aligned | CONTENT | service orchestration above the control layer | automation support in processes for different stakeholders | virtualisation of wireless and optical resources, common virtualisation framework, VNF | https://nitlab.inf.uth.gr/NITlab/papers/katsalis-multi-domainSDN.pdf |
Image Removed | based on extensions of Network Markup Language (NML) standard developed by the Open GridForum (OGF) | SENSE (Software-defined network for End-to-end Networked Science at Exascale (SENSE)) | SENSE orchestration architecture, software orchestrator | end-to-end automation (provisioning), SENSE enabled DTNs | virtualisation, service abstraction | https://www.researchgate.net/publication/331347715_SDN_for_End-to-End_Networked_Science_at_the_Exascale_SENSE
http://es.net/assets/Uploads/76kkEi9wqPrVdrGK4bSFdg.pdf
https://meetings.internet2.edu/media/medialibrary/2019/03/07/20190308-lehman-netservices-sense-v5.pdf
http://sense.es.net/
http://www.maxgigapop.net/wp-content/uploads/Software-Defined-Exchange-SDX-and-Software-Defined-ScienceDMZ-SD-SDMZ.pdf
http://hpcc.umd.edu/hpcc/sc18/lehman-yang.html
Image Removed | TMFORUM | ODA | ZOOM zero-touch orchestration & management | APIs + AI | NFV | https://www.tmforum.org/resources/whitepapers/open-digital-architecture/ |
Image Removed | TMFORUM | ODF | coming up in future efforts, very early stage, 5G use case | https://www.tmforum.org/opendigitalframework/ |
Image Removed | 5G | 5G PPP 5G Architecture White Paper Revision 3.0 – For Public Consultation. (June 2019) | multi-tier orchestration | closed-loop automation for the lifecycle management of network slice instances automation enablers study | NFV, SDN | https://5g-ppp.eu/white-papers/ |
Image Removed | ETSI | GANA - Generic Autonomic Networking Architecture | relies on an outside service orchestrator | autonomic management and control | NFV, SDN | https://www.etsi.org/images/files/ETSIWhitePapers/etsi_wp16_gana_Ed1_20161011.pdf |
Image Removed | ETSI | NFV | in conjunction with ETSI OSM https://www.etsi.org/committee/nfv | Efforts towards Industry harmonisation for Unified Standards on Autonomic Management & Control (AMC) of Networks and Services, SDN and NFV | Commercial solutions
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Aspects covered by architecture | Proposer | Name | Orchestration | Automation | Virtualisation | Link to general info |
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Anuta Networks | AN NSO | Vendor-supplied Orchestration | network automation workflow, closed-loop network automation, API integrations with IP infrastructure | SDN, VNF and Cloud | https://www.anutanetworks.com/network-service-orchestration/ |
Oracle | SNO | https://www.oracle.com/industries/communications/solutions/service-network-orchestration/ | Ciena | Multi-Domain Service Orchestration | Orchestrates technologically diverse domains: cloud, multi-layer WAN, NFV, IP/MPLS | Does not automate any domain in particular. | Does not address, except as the orchestration. | https://www.ciena.com/insights/what-is/what-is-service-orchestration.html |
AT&T | ECOMP (Enhanced Control, Orchestration, Management & Policy) Architecture | End-to-end service orchestration | Closed-loop automation | Compute, Network and Storage | https://about.att.com/content/dam/snrdocs/ecomp.pdf |
i2CAT | TALENT - Terrestrial and Satellite Resource Coordination Framework | Provide E2E service orchestration through MANO frameworks, e.g. OSM | End-to-end service provisioning and resource coordination | Abstraction (API, information and data model) | https://ieeexplore.ieee.org/document/8802047